JavaScript面向对象---继承

     javaScript没有集成的对象，所以采用下面三种方法模拟：    <br />    <div>     <br /> 1、js原型实现继承     <br />     <pre class="brush:javascript; toolbar: true; auto-links: false;">function Person(name,age){   this.name=name;   this.age=age; } Person.prototype.sayHello=function(){    document.write("使用原型得到Name："+this.name+"</br>"); }   //var per=new Person("zhangping","21");   //per.sayHello();    function Student(){}  Student.prototype=new Person("zhangping","21");  var stu=new Student();  Student.prototype.gade="3";   Student.prototype.intr=function(){      document.write(this.gade);  }  stu.sayHello(); stu.intr(); */ 2、构造函数实现继承 /* function  Parent(name){    this.name=name;    this.sayParent=function(){      document.write("Parent:"+this.name);    } } function  Child(name,age){   this.tempMethod=Parent;   this.tempMethod(name);   /*   this.age=age;   this.sayParent=function(){      document.write("Child:"+this.name+"age:"+this.age);    }    */    /* } var parent=new Parent("zhangping"); parent.sayParent(); var child=new Child("xiaoguanxianfei","11"); child.sayParent(); */  3、使用Call Applay实现继承  function  Person(name,age,love){     this.name=name;     this.age=age;     this.love=love;     this.say=function say(){        document.write("姓名："+name);     } } function student(name,age){    Person.call(this,name,age); } function teacher(name,love){    Person.apply(this,[name,love]); } var per=new Person("zhangping","21","guanxianfei"); per.say(); var stu=new student("guanxianfei","22"); stu.say(); var tea=new teacher("xiaoguanxianfei","22"); tea.say();</pre>     <br /> 来自：     <a href="/misc/goto?guid=4959499860377465821" target="_blank">http://www.blogjava.net/17learning/archive/2011/12/15/366386.html</a>    </div>